Insider trade

CEO sold ~$3.94M of CME shares in the open market

Traded Sep 10, 2026 · Filed Sep 11, 2026

CME GroupCME

~$3.94M
Reported value · 14K sh @ $274.41: 41K
Holds after · shares reported: -3.3%
stock since the trade · S&P 500 +0.8%, $274.07 → $265.10 on Oct 1

Why it stands out

The boss of CME Group sold $3.94M of CME Group shares. Nobody planned it ahead of time.

Written from the filing's own figures. OQRO describes what was reported and never tells you what to buy or sell

View the official recordSEC Form 4 — Statement of Changes in Beneficial Ownership

All the details

Dates, kept separate

Transaction date: Sep 10, 2026
Reporting period: Not applicable
Filed with the SEC: Sep 11, 2026

CEO$1M+

Context

Classification

open market sale

Code S — open-market or private sale

Absolute commitment

~$3,943,821

Shares × reported transaction price

Timing vs results

50 days after results of Jul 22, 2026

Results dates are the company's own 8-K (Item 2.02). Many companies only let insiders trade in a window after results

Price at the time

Closed at $274.07 on Sep 10, 2026, 25% above its 52-week low and 16% below its high, after a 3% rise over the previous 30 trading days

52-week range $218.58 (Jun 29, 2026) to $326.46 (Mar 2, 2026), 51% of the way up, from 251 adjusted closes. 30 trading days earlier: $265.44 on Jul 29, 2026. Describes the past only, not a forecast

Planned / mechanical clue

None found in footnotes

Only flagged when a footnote says so; never inferred

Securities lawsuit open at the trade date

A securities lawsuit naming the company as a defendant was filed on Jun 14, 2024 in the U.S. District Court, S.D. New York. A filing is an allegation, not a finding.

Global Carbon Opportunity (Cayman) Fund Ltd. v. CME Group Inc., docket 1:24-cv-04562, via CourtListener (court records). Nature of suit 850, company named as first defendant

After it was reported

After	Stock	S&P 500	Difference
7 days	-1.8%	+1.7%	-3.4%

Past results only. Not a forecast.

Source receipt

Record ID: 0001212809-26-000006
Filed / recorded: Sep 11, 2026, 9:17 PM UTC
Added to OQRO: Oct 2, 2026, 12:27 PM UTC
Parser: form4-xml-v1
Data quality: Verified: identifiers matched exactly
Issuer: CME GROUP INC.
Issuer CIK: 1156375
Ticker: CME
Reporting person: Terrence A Duffy
Relationship: Director, Officer
Officer title: Chairman and CEO
Security: Common Stock Class A
Table: Non-derivative (Table I)
Transaction date: Sep 10, 2026
Transaction code: S
Shares / units: 14,372
Price per share: $274.41
Acquired / disposed: Disposed (D)
Shares owned after: 41,258
Ownership form: Direct
Amendment: No

Footnotes from the filing

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $273.875 to $274.85, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

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